I am very happy with my purchase at staples of post-it 3"x3" alternating marseille colors pop-up notes, 12 pack by post-it.This refill pack is very handy to have especillay in the 12 pack. You never have to worry about running out of pop-up paper for a while. Also they are packaged to where only a certain amount is in a bundle for easy storage. Plus by buying in a large quanity like this bundle it gives you time to wait till staples has them on sale to save even more money.They are very colorful & fun to use! my grandkids love them!